• Title/Summary/Keyword: COX-1, COX-2

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Clinical Features and Prognostic Factors in Elderly Koreans with Advanced Non-Small-Cell Lung Cancer in a Tertiary Referral Hospital

  • Kim, Seo Woo;Kim, Mi Yeon;Lee, Yoon Pyo;Ryu, Yon Ju;Lee, Seok Jeong;Lee, Jin Hwa;Chang, Jung Hyun;Shim, Sung Shine
    • Tuberculosis and Respiratory Diseases
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    • v.75 no.2
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    • pp.52-58
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    • 2013
  • Background: More than half of cases for advanced non-small-cell lung cancer (NSCLC) occur in elderly patients with a median age at diagnosis of 70 years. The aim of our study was to examine the clinical features and prognostic factors contributing to mortality in elderly patients with advanced NSCLC. Methods: Following a retrospective review of clinical data, 122 patients aged 70 years and over with a histopathological diagnosis of locally advanced (stage IIIB, n=32) and metastatic (stage IV, n=90) NSCLC between 2005 and 2011 were enrolled. Results: The median age was 76 years (interquartile range, [IQR], 72-80 years), and 85 (70%) patients were male. Fifty-seven (46%) patients had never smoked, and 17 (19%) were in a malnourished state with a body mass index (BMI) of <$18.5kg/m^2$. The initial treatments included chemotherapy (40%) and radiotherapy (7%), but 57% of the patients received supportive care only. The 1-year survival rate was 32%, and the 3-year survival rate was 4%, with a median survival duration of 6.2 months (IQR, 2.5-15.3 months). Male gender (hazard ratio [HR], 2.2; 95% confidence interval [CI], 1.3-3.9; p=0.005), low BMI (HR, 2.3; 95% CI, 1.3-3.9; p=0.004), and supportive care only (HR, 1.9; 95% CI, 1.2-2.9; p=0.007) were independent predictors of shorter survival based on a Cox proportional hazards model. Conclusion: Elderly patients with advanced NSCLC had a poor prognosis, particularly male patients, those with a low BMI, and those who received supportive care only.

An Analysis on Factors Affecting Local Control and Survival in Nasopharvngeal Carcinoma (비인두암의 국소 종양 치유와 생존율에 관한 예후 인자 분석)

  • Chung Woong-Ki;Cho Jae-Shik;Park Seung Jin;Lee Jae-Hong;Ahn Sung Ja;Nam Taek Keun;Choi Chan;Noh Young Hee;Nah Byung Sik
    • Radiation Oncology Journal
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    • v.17 no.2
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    • pp.91-99
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    • 1999
  • Propose : This study was performed to find out the prognostic factors affecting local control, survival and disease free survival rate in nasopharyngeal carcinomas treated with chemotherapy and radiation therapy. Materials and Methods : We analysed 47 patients of nasopharyngeal carcinomas, histologically confirmed and treated at Chonnam University Hospital between July 1986 and June 1996, retrospectively. Range of patients' age were from 16 to 80 years (median; 52 years). Thirty three (70$\%$) patients was male. Histological types were composed of 3 (6$\%$) keratinizing, 30 (64$\%$) nonkeratinizing squamous cell carcinoma and 13 (28$\%$) undifferentiated carcinoma. Histoiogicai type was not known in 1 patient (2$\%$). We restaged according to the staging system of 1997 American Joint Committee on Cancer Forty seven patients were recorded as follows: 71: 11 (23$\%$), T2a; 6 (13$\%$), T2b; 9 (19$\%$), 73; 7 (15$\%$), 74: 14 (30$\%$), and NO; 7 (15$\%$), Nl: 14 (30$\%$), N2; 21 (45%), N3: 5 (10%). Clinical staging was grouped as follows: Stage 1; 2 (4$\%$), IIA: 2 (4$\%$), IIB; 10 (21$\%$), III; 14 (30$\%$), IVA; 14 (30$\%$) and IVB; 5 (11$\%$). Radiation therapy was done using 6 MV and 10 MV X- ray of linear accelerator. Electron beam was used for the Iymph nodes of posterior neck after 4500 cGy. The range of total radiation dose delivered to the primary tumor was from 6120 to 7920 cGy (median; 7020 cGy). Neoadjuvant chemotherapy was performed with cisplatin +5-fluorouracil (25 patients) or cisplatin+pepleomycin (17 patients) with one to three cycles. Five patients did not received chemotherapy. Local control rate, survival and disease free suwival rate were calculated by Kaplan-Meier method. Generalized Wilcoxon test was used to evaluate the difference of survival rates between groups. multivariate analysis using Cox proportional hazard model was done for finding prognostic factors. Results: Local control rate was 81$\%$ in 5 year. Five year survival rate was 60$\%$ (median survival; 100 months). We included age, sex, cranial nerve deflicit, histologic type, stage group, chemotherapy, elapsed days between chemotherapy and radiotherapy, total radiation dose, period of radiotherapy as potential prognostic factors in multivariate analysis. As a result, cranial none deficit (P=0.004) had statistical significance in local control rate. Stage group and total radiation dose were significant prognostic factors in survival (P=0.000, P=0.012), and in disease free survival rates (P=0.003, P=0.008), respectively. Common complications were xerostomia, tooth and ear problems. Hypothyroidism was developed in 2 patients. Conclusion : In our study, cranial none deficit was a significant prognostic factor in local control rate, and stage group and total radiation dose were significant factors in both survival and disease free survival of nasopharyngeal carcinoma. We have concluded that chemotherapy and radiotherapy used in our patients were effective without any serious complication.

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The Effect of Aralia Cordata Thunb and Cimicifuga Heracleifolia on Cartilage Protection by the Regulation of Metabolism in Human Osteoarthric Chondrocytes (퇴행성 관절염에 대한 독활.승마 복합처방의 대사조절을 통한 연골보호 효과)

  • Shin, Ye-Ji;Beak, Yong-Hyeon;Park, Dong-Suk;Kim, Jae-Kyu;Koh, Hyung-Kyun
    • Journal of Acupuncture Research
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    • v.27 no.4
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    • pp.39-53
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    • 2010
  • 목적 : 퇴행성 관절염은 염증성 사이토카인인 IL-$1\beta$에 의해 연골관절이 파괴되고 이로 인해 염증성 사이토카인이 더욱 증가하는 질환이다. 퇴행성 관절염을 치료하기 위해서는 연골 파괴를 가속화시키는 catabolic cytokines의 활성을 줄이고, 성장인자인 anabolic factor의 활성을 증가시는 연골 보호 작용이 있어야 한다. 본 연구에서는 독활 승마 처방(OAH19T)이 catabolic/anabolic 대사 조절에 어떤 영향을 미치는지와 그 신호 전달 기전에 대해 연구하였다. 또한 OAH19T를 구성하는 단미재 및 임상에서 사용되는 COX-2 inhibitor인 Celebrex(CEL)와 효능을 비교 실험하였다. 방법 : 배양된 세포에 IL-$1\beta$로 자극한 후 (1) glycosaminoglycan(GAG)의 분해 억제 정도, (2) OAH19T와 CEL에 대하여 MMP-1과 MMP-3의 유전자 발현 및 활성 억제, (3) Aggrecan 및 Aggrecanases의 유전자 발현 및 활성 억제, (4) OAH19T의 growth factor의 조절 능력, (5) MAPK pathway 등을 RT-PCR(reverse transcriptase-polymerase chain reaction), ELISA(Enzyme-linked immunosorbent assay), western blot, viability 측정을 통해 검증했다. 결과 : 사람 관절 세포에서 (1) 독활 승마 각각의 단미재, 임상에서 사용중인 셀레콕시브(CEL), 조인스보다 실험 약물(OAH19T)이 저농도에서 GAG 분해 억제 효과가 우수하였고, 부탄올로 분획한 OAH19B와는 동등한 효과를 보였다. (2) OAH19T는 IL-$1\beta$에 의하여 활성화된 MMP-1과 MMP-3의 발현을 모두 억제하였으나, CEL은 MMP-1의 발현은 억제하였으나 MMP-3의 발현은 억제하지 못하였다. (3) OAH19T는 IL-$1\beta$에 의하여 손상된 Aggrecan을 회복시켰으며 이는 활성화된 Aggrecanase-1과 Aggrecanase-2를 억제시킴으로써 나타난 결과이다. 그러나 CEL의 경우, 손상된 Aggrecan을 회복시키지 못하였다. (4) 배양된 세포는 IL-$1\beta$에 의하여 TGF-$\beta$II및 TGF-$\beta$ receptor II의 발현이 억제되었으나, OAH19T는 TGF-$\beta$II및 TGF-$\beta$ receptor II의 발현을 회복시켜 OAH19T가 anabolic한 조절능력이 있음을 시사한다. 그러나 CEL의 경우 growth factor에 대한 조절 능력이 없었다. (5) 대사 조절 작용에 대한 기전으로서 MAPK pathway에 대해서 연구한 결과 IL-$1\beta$에 의하여 유도된 pERK, pp38 kinase의 활성은 억제하였고, pJNK의 활성은 변하지 않았다. 또한 OAH19T는 연골 세포에 독성이 없었으며 IL-$1\beta$에 의해 유도된 세포 증식만을 억제시켰다. 이 결과로, OAH19T가 OA chondrocyte의 탈분화 및 세포 고사를 억제하여 연골보호 및 회복 효과가 있음을 알 수 있었다. 결론 : OAH19T는 이를 구성하는 단미재 및 CEL보다 연골보호 효과가 월등하였고, 이러한 연골보호 효과는 catabolic cytokines/growth factors의 균형으로 대사조절을 통해 연골세포의 탈분화 및 세포 고사를 억제하여 연골보호 및 회복 효과가 있음을 알 수 있었다.

The Prognostic Value of the Charlson's Comorbidity Index in Patients with Prolonged Acute Mechanical Ventilation: A Single Center Experience

  • Song, Seung Eon;Lee, Sang Hee;Jo, Eun-Jung;Eom, Jung Seop;Mok, Jeong Ha;Kim, Mi-Hyun;Kim, Ki Uk;Lee, Min Ki;Lee, Kwangha
    • Tuberculosis and Respiratory Diseases
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    • v.79 no.4
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    • pp.289-294
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    • 2016
  • Background: The aim of our study was to evaluate the prognostic value of Charlson's weighted index of comorbidities (WIC) in patients with prolonged acute mechanical ventilation (PAMV, ventilator care ${\geq}96$ hours). Methods: We retrospectively enrolled 299 Korean PAMV patients who were admitted in a medical intensive care unit (ICU) of a university-affiliated tertiary care hospital between 2008 and 2013. Survivors were defined as patients who survived for 60 days after ICU admission. Results: The patients' mean age was $65.1{\pm}14.1$ years and 70.6% were male. The mean ICU and hospital length of stay was $21.9{\pm}19.7$ and $39.4{\pm}39.1$ days, respectively. In addition, the 60-day mortality rate after ICU admission was 35.5%. The mean WIC was $2.3{\pm}1.8$, with significant differences between nonsurvivors and survivors ($2.7{\pm}2.1$ vs. $2.1{\pm}1.7$, p<0.05). The area under the curve of receiver-operating-characteristics curve for WIC was 0.593 (95% confidence interval [CI], 0.523-0.661; p<0.05). Based on Kaplan-Meier curves of 60-day survival, WIC ${\geq}5$ had statistically lower survival than WIC <5 (logrank test, p<0.05). In a multivariate Cox proportional hazard model, WIC ${\geq}5$ was associated with poor prognosis (hazard ratio, 1.901; 95% CI, 1.140-3.171; p<0.05). The mortality rate of patients with WIC ${\geq}5$ was 54.2%. Conclusion: Our study showed a WIC score ${\geq}5$ might be helpful in predicting 60-day mortality in PAMV patients.

Effects of Jakyakkamchobuja-tang (芍藥甘草附子湯) on Papain-induced Osteoarthritis in Mice (Papain으로 유도된 골관절염 생쥐 모델에서 작약감초부자탕(芍藥甘草附子湯)의 항골관절염 효능에 관한 연구)

  • Lee, Jung-Min;Hong, Seo-Young;Oh, Min-Seok
    • The Journal of Korean Medicine
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    • v.34 no.1
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    • pp.116-135
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    • 2013
  • Objectives: This study was intended to clarify how Jakyakkamchobuja-tang (hereinafter referred to JKBT) affects mice of C57BL/10 whose osteoarthritis was induced by papain. Methods: Osteoarthritis was induced in mice by injecting papain in the knee joint. Mice were divided into 4 groups (n=6). The normal group were not treated at all whereas the control group (OAC-control) were induced for osteoarthritis by papain and oral medicated with 200 ul of physiological saline per day. The positive comparison group (OAC-$Joins^{(R)}$) were injected with papain and after 7 days, 100 mg/kg of $Joins^{(R)}$ were medicated with 200 ul of physiological saline mixed. The experimental group (OAC-JKBT) were injected with papain and after 7 days were medicated with 400 mg/kg of JKBT mixed with 200 ul of physiological saline. OAC-$Joins^{(R)}$ and OAC-JKBT were oral medicated for each substance for a total of 4 weeks, once per day. After experiments (from 1 week after injection of papain to 4 weeks elapsed), the function of liver and kidney, inflammation cytokine values within serum, degree of revelation for inflammation cytokine genes, immune cells within blood, metabolism of arachidonic acid and amount of cartilage were measured and histopathological variations for knee joint structures were observed. Results: Functions of liver and kidney were not affected. IL-$1{\beta}$ (interleukin-$1{\beta}$), MCP-1 (monocyte chemoattractant protein-1) and TNF-${\alpha}$ (tumor necrosis factor-${\alpha}$) were significantly reduced and IL-6 (interleukin-6) was also reduced but not significantly. After analyzing inflammation cytokine in joints with mRNA (messenger ribonucleic acid), revelation of IL-6, TNF-${\alpha}$, COX-2 (cyclooxygenase-2) and iNOS-II (inducible nitric oxide synthase-II) were all significantly reduced. Revelation of IL-$1{\beta}$ gene was also reduced but not significantly. Neutrophil for WBC (white blood cell) within serum was significantly reduced; monocyte was also reduced but not significantly. PGE2 (prostaglandin E2), TXB2 (thromboxane B2) were significantly reduced and LTB4 (leukotriene B4) was also reduced but not significantly. Destruction of cartilage on micro CT (computed tomography)-arthrography was reduced but had no significant differences. In terms of histopathology, infiltration of inflammation, proliferation of synovial membrane, subsidence of cartilage and bone due to penetration of excessive formation of synovial cell and destruction of cartilage were small (H&E (hematoxylin and eosin), safranine O staining). Conclusions: Based on these results, Jakyakkamchobuja-tang (JKBT) is believed to be useful for suppressing the progress of osteoarthritis and its treatments because of its anti-inflammatory effects and alleviation of pain with histopathological effective efficacy.

Effect of KwyBiChongMung-Tang Hot Water Extract & Ultra-fine Powder on the Alzheimer's Disease Model (귀비총명탕 열수추출물과 초미세분말제형이 Alzheimer's Disease 병태 모델에 미치는 영향)

  • Lee, Seung-Hee;Lee, Sang-Ryong;Jung, In-Chul
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.21 no.4
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    • pp.921-933
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    • 2007
  • This experiment was designed to investigate the effects of the KBCMT hot water extract & ultra-fine powder on Alzheimer's Disease Model Induced by ${\beta}A$. The effects of the KBCMT hot water extract on expression of $IL-1{\beta}$, IL-6, $TNF-{\alpha}$, NOS-II, COX-2 mRNA and production of $IL-1{\beta}$, IL-6, $TNF-{\alpha}$, NO in BV2 microglial cell line treated by lipopolysacchaide(LPS). The effects of the KBCMT hot water extract & ultra-fine powder on (1) the behavior (2) expression of $IL-1{\beta}$, $TNF-{\alpha}$, MDA, CD68 and CD11b; (3) AChE in serum (4) the infarction area of the hippocampus, and brain tissue injury in Alzheimer's diseased mice induced with ${\beta}A$ were investigated. The KBCMT hot water extract suppressed the expression of $IL-1{\beta}$, IL-6 and $TNF-{\alpha}$ mRNA in BV2 microglia cell line treated with LPS. The KBCMT hot water extract suppressed the production of $IL-1{\beta}$, IL-6, $TNF-{\alpha}$, NO in BV2 microglial cell line treated with LPS. The KBCMT hot water extract & ultra-fine powder a significant inhibitory effect on the memory deficit was shown for the mice with Alzheimer's disease induced by ${\beta}A$ in the Morris water maze experiment, which measured stop-through latency and distance movemet-through latency The KBCMT ultra-fine powder suppressed the expression of TNF-a protein significantly in the microglial cell of mice with Alzheimer's disease induced by ${\beta}A$. The KBCMT hot water extract & ultra-fine powder reduced the MDA and suppressed the over-expression of CD68, CD11b in the mice with Alzheimer's disease induced by ${\beta}A$. The KBCMT hot water extract & ultra-fine powder decreased AChE significantly in the serum of the mice with Alzheimer's disease induced by ${\beta}A$. The KBCMT hot water extract & ultra-fine powder reduced infarction area of hippocampus, and controlled the injury of brain tissue in the mice with Alzheimer's disease induced by ${\beta}A$. The KBCMT hot water extract & ultra-fine powder reduced the tau protein, GFAP, and presenilin1, 2 of hippocampus in the mice with Alzheimer's disease induced by ${\beta}A$. These results suggest that the KBCMT hot water extract & ultra-fine powder may be effective for the prevention and treatment of Alzheimer's disease. Investigation into the clinical use of the KBCMT hot water extract & ultra-fine powder for Alzheimer's disease is suggested for future research.

Effects of Sesim-tang Hot Water Extract & Ultra-fine Powder on the Alzheimer's Disease Model (세심탕(洗心湯) 열수추출물, 초미세분말제형이 Alzheimer's Disease 병태 모델에 미치는 영향)

  • Kim, Hyun-Soo;Lee, Sang-Yong;Jung, In-Chul
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.21 no.3
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    • pp.688-699
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    • 2007
  • This experiment was designed to investigate the effect of the SST hot water extract & ultra-fine Powder on Alzheimer's Disease Model Induced by ${\beta}$A. The effects of the SST hot water extract on expression of IL-1${\beta}$, IL-6, TNF-${\alpha}$, NOS-II, COX-2 mRNA and production of IL-l${\beta}$, IL-6, TNF-${\alpha}$, NO in BV2 microglial cell line treated by lipopolysacchaide(LPS). The effects of the SST hot water extract & ultra-fine powder on (1) the behavior (2) expression of IL-1${\beta}$, TNF-${\alpha}$, MDA, (3) Glucose, AChE in serum (4) the infarction area of the hippocampus, and brain tissue injury in Alzheimer's diseased mice induced with ${\beta}$A were investigated. The SST hot water extract suppressed the expression of IL-1${\beta}$, IL-6 and TNF-a mRNA ${\alpha}$in BV2 microglia cell line treated with LPS. The SST hot water extract suppressed the production of IL-1${\beta}$, IL-6, TNF-${\alpha}$, NO in BV2 microglial cell line treated with LPS. The SST hot water extract & ultra-fine powder a significant inhibitory effect on the memory deficit was shown for the mice with Alzheimer's disease induced by ${\beta}$A in the Morris water maze experiment, which measured stop-through latency. The SST ultra-fine powder suppressed the expression of TNF-a protein significantly in the microglial cell of mice with Alzheimer's disease induced by ${\beta}$A. The SST hot water extract & ultra-fine powder reduced the MDA and suppressed the over-expression of CD68, CD11b in the mice with Alzheimer's disease induced by ${\beta}$A. The SST hot water extract & ultra-fine powder decreased AChE significantly in the serum of the mice with Alzheimer's disease induced by ${\beta}$A. The SST hot water extract & ultra-fine powder reduced infarction area of hippocampus, and controlled the injury of brain tissue in the mice with Alzheimer's disease induced by ${\beta}$A. The SST hot water extract & ultra-fine powder reduced the tau protein, GFAP, and presenilin1, 2 of hippocampus in the mice with Alzheimer's disease induced by ${\beta}$A. These results suggest that the SST hot water extract & ultra-fine powder may be effective for the prevention and treatment of A1zheimer's disease. Investigation into the clinical use of the SST hot water extract & ultra-fine powder for Alzheimer's disease is suggested for future research.

Association Between Pelvic Bone Computed Tomography-Derived Body Composition and Patient Outcomes in Older Adults With Proximal Femur Fracture

  • Tae Ran Ahn;Young Cheol Yoon;Hyun Su Kim;Kyunga Kim;Ji Hyun Lee
    • Korean Journal of Radiology
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    • v.24 no.5
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    • pp.434-443
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    • 2023
  • Objective: To investigate the association between pelvic bone computed tomography (CT)-derived body composition and patient outcomes in older adult patients who underwent surgery for proximal femur fractures. Materials and Methods: We retrospectively identified consecutive patients aged ≥ 65 years who underwent pelvic bone CT and subsequent surgery for proximal femur fractures between July 2018 and September 2021. Eight CT metrics were calculated from the cross-sectional area and attenuation of the subcutaneous fat and muscle, including the thigh subcutaneous fat (TSF) index, TSF attenuation, thigh muscle (TM) index, TM attenuation, gluteus maximus (GM) index, GM attenuation, gluteus medius and minimus (Gmm) index, and Gmm attenuation. The patients were dichotomized using the median value of each metric. Multivariable Cox regression and logistic regression models were used to determine the association between CT metrics with overall survival (OS) and postsurgical intensive care unit (ICU) admission, respectively. Results: A total of 372 patients (median age, 80.5 years; interquartile range, 76.0-85.0 years; 285 females) were included. TSF attenuation above the median (adjusted hazard ratio [HR], 2.39; 95% confidence interval [CI], 1.41-4.05), GM index below the median (adjusted HR, 2.63; 95% CI, 1.33-5.26), and Gmm index below the median (adjusted HR, 2.33; 95% CI, 1.12-4.55) were independently associated with shorter OS. TSF index (adjusted odds ratio [OR], 6.67; 95% CI, 3.13-14.29), GM index (adjusted OR, 3.45; 95% CI, 1.49-7.69), GM attenuation (adjusted OR, 2.33; 95% CI, 1.02-5.56), Gmm index (adjusted OR, 2.70; 95% CI, 1.22-5.88), and Gmm attenuation (adjusted OR, 2.22; 95% CI, 1.01-5.00) below the median were independently associated with ICU admission. Conclusion: In older adult patients who underwent surgery for proximal femur fracture, low muscle indices of the GM and gluteus medius/minimus obtained from their cross-sectional areas on preoperative pelvic bone CT were significant prognostic markers for predicting high mortality and postsurgical ICU admission.

Change in Palliative Performance Scale (PPS) Predicts Survival in Patients with Terminal Cancer

  • Oh, Jee Hye;Lee, Yong Joo;Seo, Min Seok;Yoon, Jo Hi;Kim, Chul Min;Kang, Chung
    • Journal of Hospice and Palliative Care
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    • v.20 no.4
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    • pp.235-241
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    • 2017
  • Purpose: The Palliative Performance Scale (PPS) is a widely used prognostic tool in patients with advanced cancer. This study examines the association between changes in PPS score and survival in patients with advanced cancer. Methods: We identified a cohort of 606 inpatients who died at a Korean university hospital's hospice/palliative care center. For each patient, the PPS score was measured twice according to a standard procedure: 1) upon admission, and 2) three days after admission (D3). "Change on D3" was defined as a difference between initial PPS and PPS on D3. We used a Cox regression modeling approach to explore the association between this score change and survival. Results: The changes in scores were associated with survival. A score change of >30% yielded a hazard ratio for death of 2.66 (95% CI 2.19~3.22), compared to a score change of ${\leq}30%$. PPS of ${\leq}30$ on D3 also independently predicted survival, with a hazard ratio of 1.67 (95% CI 1.38~2.02) compared to PPS of >30. Conclusion: A change of over 30% in PPS appears to predict survival in hospitalized patients with terminal cancer, even after adjustment for confounders. Changes in PPS may be a more sensitive indicator of impending death than a single PPS measured on the day of admission in terminal cancer patients. Further prospective study is needed to examine this important finding in other populations.

The Anti-Inflammatory Effect of Trichilia martiana C. DC. in the Lipopolysaccharide-Stimulated Inflammatory Response in Macrophages and Airway Epithelial Cells and in LPS-Challenged Mice

  • Park, Ji-Won;Ryu, Hyung Won;Ahn, Hye In;Min, Jae-Hong;Kim, Seong-Man;Kim, Min-Gu;Kwon, Ok-Kyoung;Hwang, Daseul;Kim, Soo-Yong;Choi, Sangho;Zamora, Nelson;Rosales, Kattia;Oh, Sei-Ryang;Lee, Jae-Won;Ahn, Kyung-Seop
    • Journal of Microbiology and Biotechnology
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    • v.30 no.11
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    • pp.1614-1625
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    • 2020
  • A number of species of the genus Trichilia (Meliaceae) exhibit anti-inflammatory effects. However, the effect of Trichilia martiana C. DC. (TM) on lipopolysaccharide (LPS)-induced inflammation has not, to the best of our knowledge, yet been determined. Therefore, in the present study, the antiinflammatory effect of TM on LPS-stimulated RAW264.7 macrophages was evaluated. The ethanol extract of TM (TMEE) significantly inhibited LPS-induced nitric oxide (NO), prostaglandin 2 (PGE2), inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2). TMEE also reduced the levels of inflammatory cytokines, including tumor necrosis factor-alpha (TNF-α), interleukin (IL)-1β and IL-6. The upregulation of mitogen-activated protein kinases (MAPKs) and NF-κB activation was revealed to be downregulated following TMEE pretreatment. Furthermore, TMEE was indicated to lead to the nucleus translocation of nuclear factor erythroid-derived 2-related factor 2 (Nrf2) and the expression of heme oxygenase-1 (HO-1). In H292 airway epithelial cells, the pretreatment of TMEE significantly downregulated the production of LPS-stimulated IL-1β, and TMEE was indicated to increase the expression of HO-1. In animal models exhibiting LPS-induced acute lung injury (ALI), treatment with TMEE reduced the levels of macrophages influx and TNF-α production in the bronchoalveolar lavage fluid (BALF) of ALI mice. Additionally, TMEE significantly downregulated the activation of ERK, JNK and IκB, and upregulated the expression of HO-1 in the lungs of ALI mice. In conclusion, the results of the current study demonstrated that TMEE could exert a regulatory role in the prevention or treatment of the endotoxin-mediated inflammatory response.